Saturday, February 28, 2009

Winter Storm To Affect Us Tomorrow Night...

We're still on track for some snow late tomorrow night into Monday morning. Storm #1 tracks across the region (to our southeast) tonight, bringing periods of rain, which will taper off by early tomorrow morning. Then storm #2 takes shape, spreading moisture back over the region later in the afternoon. It should be rain, as temperatures will be high enough to keep the precipitation liquid...at least for a while. A deepening upper low will move across South Carolina and then lift slowly northeast tomorrow night. The surface low should track to our southeast, although some of the latest model data has shifted a little more inland. This would keep somewhat milder air over southeast VA longer, meaning a bit more rain into the evening. I do think in Metro Richmond, we'll start to see sleet mix in and then a changeover to snow later in the evening. Periods of snow should continue overnight, leading to accumulation overnight. Just how much will depend on a few things...1) how soon the changeover takes place, 2) how fast the snow begins to accumulate due to a relatively milder and wet ground and 3) how much drier air gets wrapped into the system. There is the potential for a significant snowfall over parts of the area, but there are a lot of factors to consider. This is a late-season storm which brings even more questions to the equation.

My initial hunch for potential snow accumulation is 2-4 inches in and around Metro Richmond. Stay tuned...

2 comments:

Don said...

Hey Mike, It's still winter, snow can be expected.Personally I do not want it but the kids need to see snow and play in it.

Take Care,

Don Aspinall
Toano

gary said...

Hey Mike, You still have the best forecast in the Richmond area. Keep up the good work.

Gary Alley

Glen Allen